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Units and Measurement
Question
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When the earth is at apogee, then its distance from the sun is greater or less than 1 Astronomical unit?

Answer

At apogee, the earth is at a distance greater than 1astronomical unit.

[Note: Apogee, or more formally apsis, is the point, in an elliptical Earth orbit, of greatest distance from the Earth.]

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Some More Questions From Units and Measurement Chapter

Can we use same units for different physical quantities?

Can we use different units to measure same physical quantity?

To measure a physical quantity X, the unit U is repeatedly used for n times. What is the magnitude of physical quantity?

Does the numerical factor in the quantitative measurement depend on the system of unit used?

Is one unit sufficient to measure a physical quantity?

Can a physical quantity have two or more units? Give example.

What are fundamental quantities?

How many fundamental quantities are there in mechanics?